This is not exactly a game but you basically can make any figure with any line thickness and rainbow colouring. Just click on that button to make it and on the green flag to clear. NOTE: YOU CAN MOVE THE PENCIL AT WILL.
If you want to draw whatever you like at will, check out my new whiteboard project! https://scratch.mit.edu/projects/636222190 <iframe src="https://scratch.mit.edu/projects/636486447/embed" allowtransparency="true" width="485" height="402" frameborder="0" scrolling="no" allowfullscreen></iframe>
